Below you can see the front view size comparison of Sony A9 and Samsung NX mini. Samsung NX mini is clearly the smaller of the two cameras. Its body is 17mm narrower, 34mm shorter and 40mm thinner than Sony A9.

Now lets look at the top view comparison of Sony A9 and Samsung NX mini.

Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Samsung NX mini is significantly lighter (477g ) than the Sony A9 which may become a big advantage especially on long walking trips.

Also keep in mind that body weight is not the only deciding factor when comparing two interchangeable camera bodies, you have to also take into account the lenses that you will be using with these bodies. Since Sony A9 has a Full frame sensor and Samsung NX mini has a smaller 1" sensor, Samsung NX mini's lenses for a similar focal length and aperture will generally be lighter and smaller than the Sony A9 lenses.

Another difference between these two cameras is that Sony A9's sensor lacks anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moire occurring in certain scenes.

Below you can see the A9 and NX mini sensor size comparison.

As seen above, Sony A9 has a 7.3x Larger sensor area than Samsung NX mini. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.

What types of Photography are Sony A9 and Samsung NX mini Good for?

In this section, we rank and compare Sony A9 and Samsung NX mini for five different photography types in order to make your decision process easier in case you are specifically interested in one or more of these areas.

Number of available lenses is a big decision factor while choosing your interchangeable lens camera. When we look at the available lenses for these two cameras, we see that Sony A9 has an advantage over Samsung NX mini. There are 83 lenses for Sony A9's Sony E mount, on the other hand there are only 2 lenses for Samsung NX mini's Samsung NX-M lens mount.

Another important factor is the availability of image stabilization. Sony A9 has a big advantage in this regard because it has a sensor based image stabilization which means that all the lenses mounted to this body will be stabilized. On the other hand, Samsung NX mini doesn't have this feature so you have to buy a lens with optical stabilization feature. Currently there are 1 lenses for Samsung NX-M mount with Optical Image Stabilization features.

You may have already made your decision about which camera suits better for your needs and your budget so far but in case you wonder how we rated Sony A9 and Samsung NX mini, below you can find their scores in five different aspects.
Our Decision Algorithm dynamically scores cameras using 63 different specs, current price and DxO Mark scores (where possible) in order to make a more objective and consistent comparison.

Here is a summary of how Sony A9 and Samsung NX mini scores compare:

Sony A9

Imaging

Features

Value

Portability

Overall

Ranked #3 out of 49 in SLR-style mirrorless camerasRanked #6 out of 1131 in all Cameras

Samsung NX mini

Imaging

Features

Value

Portability

Overall

Ranked #24 out of 114 in Rangefinder-style mirrorless camerasRanked #142 out of 1131 in all Cameras

Sony A9 is the overall winner of this comparison. It has a higher Overall Score and beats Samsung NX mini in all criterias except one: Portability. Samsung NX mini is significantly smaller than Sony A9. If small size and light body is a big priority for you, choose Samsung NX mini. Otherwise, Sony A9 is the better camera overall.